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Finding the Fourth Proportional to 684,226.70, 944,216.52 and 382,448.78

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Solution

The fourth proportional to 684,226.70, 944,216.52 and 382,448.78 is: 527,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,226.70 : 944,216.52 = 382,448.78 : x
  2. Step 2: Convert to fraction form
    684,226.70/944,216.52 = 382,448.78/x
  3. Step 3: Cross multiply
    684,226.70x = 944,216.52 × 382,448.78
  4. Step 4: Simplify right side
    684,226.70x = 361,114,456,129.85
  5. Step 5: Solve for x
    x = 361,114,456,129.85/684,226.70
  6. Step 6: Final answer
    x = 527,770.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.